In Muharram 821 AH (February 1418) Sharif Hasan sent gifts to the Mamluk Sultan al-Nasir Faraj and requested the appointment of Ahmad as co-Emir of Mecca with his brother Barakat.
Al-Nasir granted his request and issued a decree to that effect in mid-Rabi al-Awwal 821 AH (August 1408).
[1] On 14 Safar 818 AH (c. 25 April 1415) Sultan al-Mu'ayyad Shaykh issued a decree deposing Hasan and his sons in favor of Rumaythah ibn Muhammad.
The du'a and khutbah in Mecca continued in the name of Hasan and his sons until they departed for Yemen at the start of Dhu al-Hijjah (c. 1 February 1416).
After Hasan passed control of the Emirate to Barakat in Rabi al-Awwal 821 AH (April/May 1418), Ahmad rebelled and left Mecca.